Answer:It comes from within. We don’t feel the effect of the Light. Generally, we don’t know the underlying causes of events and judge our life solely based on the effects.

Electricity manifests by giving function to electrical devices or electric shock. Similarly, the Light remains “behind the scenes” and demonstrates to us the effects of its work. I don’t see the Light itself, but its effects.

We are all the Creator’s makings. How, then, may we judge what changes take place in us? The criterion lies in the fact that I begin to think differently, and treat myself and the world in a new way.

I change within; it is hardly noticeable from the outside. Changes unfold not in egoistic properties, but in the new, additional desires. On the outside, the person remains the same.

Hence, Kabbalah is regarded as secret wisdom. On one hand, it reveals what is hidden, and on the other, it is concealed from the eyes of the outsiders who are unable to detect my inner transformation. They simply don’t possess the properties enabling them to perceive it. [28140]From the 1st part of the Daily Kabbalah Lesson 11/30/10, The Zohar, Introduction, Article “The Rose”